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Validation of 13 Hot and Potentially Terrestrial TESS Planets

Authors :
Giacalone, Steven
Dressing, Courtney D.
Hedges, Christina
Kostov, Veselin B.
Collins, Karen A.
Jensen, Eric L. N.
Yahalomi, Daniel A.
Bieryla, Allyson
Ciardi, David R.
Howell, Steve B.
Lillo-Box, Jorge
Barkaoui, Khalid
Winters, Jennifer G.
Matthews, Elisabeth
Livingston, John H.
Quinn, Samuel N.
Safonov, Boris S.
Cadieux, Charles
Furlan, E.
Crossfield, Ian J. M.
Mandell, Avi M.
Gilbert, Emily A.
Kruse, Ethan
Quintana, Elisa V.
Ricker, George R.
Seager, S.
Winn, Joshua N.
Jenkins, Jon M.
Adkins, Britt Duffy
Baker, David
Barclay, Thomas
Barrado, David
Batalha, Natalie M.
Belinski, Alexander A.
Benkhaldoun, Zouhair
Buchhave, Lars A.
Cacciapuoti, Luca
Charbonneau, David
Chontos, Ashley
Christiansen, Jessie L.
Cloutier, Ryan
Collins, Kevin I.
Conti, Dennis M.
Cutting, Neil
Dixon, Scott
Doyon, René
Mufti, Mohammed El
Esparza-Borges, Emma
Essack, Zahra
Fukui, Akihiko
Gan, Tianjun
Gary, Kaz
Ghachoui, Mourad
Gillon, Michaël
Girardin, Eric
Glidden, Ana
Gonzales, Erica J.
Guerra, Pere
Horch, Elliott P.
Helminiak, Krzysztof G.
Howard, Andrew W.
Huber, Daniel
Irwin, Jonathan M.
Isopi, Giovanni
Jehin, Emmanuël
Kagetani, Taiki
Kane, Stephen R.
Kawauchi, Kiyoe
Kielkopf, John F.
Lewin, Pablo
Luker, Lindy
Lund, Michael B.
Mallia, Franco
Mao, Shude
Massey, Bob
Matson, Rachel A.
Mireles, Ismael
Mori, Mayuko
Murgas, Felipe
Narita, Norio
O`Dwyer, Tanner
Petigura, Erik A.
Polanski, Alex S.
Pozuelos, Francisco J.
Palle, Enric
Parviainen, Hannu
Plavchan, Peter P.
Relles, Howard M.
Robertson, Paul
Rose, Mark E.
Rowden, Pamela
Roy, Arpita
Savel, Arjun B.
Schlieder, Joshua E.
Schnaible, Chloe
Schwarz, Richard P.
Sefako, Ramotholo
Selezneva, Aleksandra
Skinner, Brett
Stockdale, Chris
Strakhov, Ivan A.
Tan, Thiam-Guan
Torres, Guillermo
Tronsgaard, René
Twicken, Joseph D.
Vermilion, David
Waite, Ian A.
Walter, Bradley
Wang, Gavin
Ziegler, Carl
Zou, Yujie
Source :
AJ 163 99 (2022)
Publication Year :
2022

Abstract

The James Webb Space Telescope (JWST) will be able to probe the atmospheres and surface properties of hot, terrestrial planets via emission spectroscopy. We identify 18 potentially terrestrial planet candidates detected by the Transiting Exoplanet Survey Satellite (TESS) that would make ideal targets for these observations. These planet candidates cover a broad range of planet radii ($R_{\rm p} \sim 0.6 - 2.0 R_\oplus$) and orbit stars of various magnitudes ($K_s = 5.78 - 10.78$, $V = 8.4 - 15.69$) and effective temperatures ($T_{\rm eff }\sim 3000 - 6000$ K). We use ground-based observations collected through the TESS Follow-up Observing Program (TFOP) and two vetting tools -- DAVE and TRICERATOPS -- to assess the reliabilities of these candidates as planets. We validate 13 planets: TOI-206 b, TOI-500 b, TOI-544 b, TOI-833 b, TOI-1075 b, TOI-1411 b, TOI-1442 b, TOI-1693 b, TOI-1860 b, TOI-2260 b, TOI-2411 b, TOI-2427 b, and TOI-2445 b. Seven of these planets (TOI-206 b, TOI-500 b, TOI-1075 b, TOI-1442 b, TOI-2260 b, TOI-2411 b, and TOI-2445 b) are ultra-short-period planets. TOI-1860 is the youngest ($133 \pm 26$ Myr) solar twin with a known planet to date. TOI-2260 is a young ($321 \pm 96$ Myr) G dwarf that is among the most metal-rich ([Fe/H] = $0.22 \pm 0.06$ dex) stars to host an ultra-short-period planet. With an estimated equilibrium temperature of $\sim 2600$ K, TOI-2260 b is also the fourth hottest known planet with $R_{\rm p} < 2 \, R_\oplus$.

Details

Database :
arXiv
Journal :
AJ 163 99 (2022)
Publication Type :
Report
Accession number :
edsarx.2201.12661
Document Type :
Working Paper
Full Text :
https://doi.org/10.3847/1538-3881/ac4334